Table 3 Breaker performance upon variation of high-sensitivity variables (valve)
From: Case study on impact performance optimization of hydraulic breakers
Parameter | Result | Min | Max |
|---|---|---|---|
Vdia2 | Impact frequency (bpm) | 540 | 540 |
Impact energy (J/blow) | 514.46 | 514.98 | |
Pulsation (Supply) (bar) | 62.50 | 62.67 | |
Pulsation (Return) (bar) | 28.42 | 28.47 | |
Vdia3 | Impact frequency (bpm) | 510 | 540 |
Impact energy (J/blow) | 514.42 | 514.71 | |
Pulsation (Supply) (bar) | 67.83 | 70.85 | |
Pulsation (Return) (bar) | 17.39 | 30.52 | |
Vlap1 | Impact frequency (bpm) | 570 | 540 |
Impact energy (J/blow) | 517.08 | 510.14 | |
Pulsation (Supply) (bar) | 75.35 | 68.42 | |
Pulsation (Return) (bar) | 29.13 | 21.24 | |
Vlap2 | Impact frequency (bpm) | 540 | 540 |
Impact energy (J/blow) | 514.00 | 515.32 | |
Pulsation (Supply) (bar) | 80.00 | 72.48 | |
Pulsation (Return) (bar) | 22.98 | 31.49 | |
Vhl | Impact frequency (bpm) | 540 | 540 |
Impact energy (J/blow) | 514.60 | 514.60 | |
Pulsation (Supply) (bar) | 62.86 | 62.28 | |
Pulsation (Return) (bar) | 28.13 | 28.69 |